One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(21,22,27,26)(23,28,25,29)(24,32,33,30)(31,36,34,35)(1,2)(3,4)(5,6,10,11)(7,12,16,19)(8,9,13,18)(14,20,17,15)(21,23,27,25)(22,28,26,29)(24,31,33,34)(30,35,32,36)(6,11)(9,18)(12,19)(15,20)(21,23,27,25)(22,29,26,28)(24,31,33,34)(30,36,32,35)(5,7)(6,12)(8,17)(9,15)(10,16)(11,19)(13,14)(18,20)(21,24)(22,30)(23,31)(25,34)(26,32)(27,33)(28,35)(29,36) involution — undirected(5,8,10,13)(6,9,11,18)(7,14,16,17)(12,20,19,15)(21,25,27,23)(22,29,26,28)(24,31,33,34)(30,35,32,36)(5,9)(6,13)(7,15)(8,11)(10,18)(12,14)(16,20)(17,19)(21,26,27,22)(23,29,25,28)(24,32,33,30)(31,36,34,35)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.